These double-sided handgun cases are available in two sizes to store as many as 10 guns. All Silver Bullet/2nd Amendment gun cases are water-resistant, airline approved and include three layers of protective foam for dual layer storage. The hinges lock at 90 degrees to prevent the hinge from folding back on itself and breaking. Made of high impact ABS plastic, these cases are lightweight, strong and dent/scratch resistant with built-in combination locks.